package com.lccviolet;

import net.sf.cglib.proxy.Enhancer;
import net.sf.cglib.proxy.MethodInterceptor;
import net.sf.cglib.proxy.MethodProxy;

import java.lang.reflect.Method;

/**
 * @author LiChaochao
 * @Date 2021/10/4 12:29
 * @Description java.lang.OutOfMemoryError: Metaspace
 *
 * -XX:MetaspaceSize=8m -XX:MaxMetaspaceSize=8m
 */
public class MetaSpaceOOMTest {
    static class OOMTest {

    }

    public static void main(String[] args) {
        int i = 0; //模拟计数器，记录多少次以后发生异常

        try {
            while (true) {
                i++;
                Enhancer enhancer = new Enhancer();
                enhancer.setSuperclass(OOMTest.class);
                enhancer.setUseCache(false);
                enhancer.setCallback(new MethodInterceptor() {
                    @Override
                    public Object intercept(Object o, Method method,
                                            Object[] objects, MethodProxy methodProxy) throws Throwable {
                        return methodProxy.invokeSuper(o, args);
                    }
                });
                enhancer.create();
            }
        } catch (Throwable e) {
            System.out.println("****************多少次后发生了异常：" + i);
            e.printStackTrace();
        }
    }
}
